Apparatus for the manufacture of bricks or building-blocks



E. LECHAT.

APPARATUS FOR THE MANUFACTURE OF BRICKS 0R BUILDING BLOCKS, IAPPUCATION FILED MAR. 30, I921.

, 1,383, 1 3 1 Patented June 28, 1921.

3 SHEETS-SHEET N v [4/ 70 A:

Y 47 w e ww i E. LECHAT. APPARATUS FOR THE MANUFACTURE or BRICKS on BUILDING BLOCKS.

APPLICATION FlLED MAR. 30. 192l- Patented June 28, 1921.

E. LECHAT. APPARATUS FOR THE MANUFACTURE OF BRICKS OR BUILDING BLOCKS.

APPLICATION FILED MAR. 30, '1921.

1,383,131. PatntedJuneZS, 192

3 SHEE IS-QSHEET 3.

Fig.5.

UNITED STATES PATENT OFFICE.

EDMOND LECHAT, OF NANTES, FRANCE.

Specification of Letters Patent.

Patented June 28, 1921.

Application filed March so, 1921. Serial No. 457,044.

To all whom it may concern Be it known that I, EDMOND Lnorm'r, citizen of the French Republic, residing at Nantes, Loire-Infrieure, in the Republic of France, have invented new and useful Improvements in Apparatus for the Manufac ture of Bricks or Building-Blocks, (for which I have filed applications in France, November 11, 1919; Bel ium, Nov. 2, 1920; Germany, Nov. 9, 1920; areat Britain, Nov. 9, 1920; Spain, Nov. 9, 1920; Italy, Nov. 10, 1920,) of which the following is a spe'cifica tion.

This invention has for its object an apparatus for the manufacture of bricks or building blocks provided with a facing, which automatically and simultaneously places two varieties of concrete into the molds of the brick and block presses, one of these varieties being used to form a facing uponone or more sides of the bricks or block while the second forms the main body, this apparatus being essentially constituted by a framework supporting the whole of the special mechanism for entraining the endless apron constituting the movable bottom of the distributing troughs provided with adjustable shutters, the material thereof being drawn into feeding chutes and fed thence into conduits or spouts which extend through an opening into the molds of the press and have the same shape as the latter, the sides of these spouts opposite the sides of the block to be faced being disposed inwardly of the corresponding inner sides of said molds, thus leaving a space to receive the high quality facing concrete flowed in from the corresponding chutes, whereas through the intermediary of the distributing troughs for the core material, this latter is flowed into the bottom of the spouts which rest at this moment upon the bottom of the molds.

In the accompanying drawing and by way of example:

Figure 1 is a general view of an apparatus according to the invention mounted upon its baseand viewed from the side of the entraining mechanism.

ig. 5 is a plan view of the'distributing troughs with movable bottom, also showing grade I material form the method of entraining the drum for the. '7

small side to be faced.

As shown in the drawing: This machine is composed of a framework, in wrought or cast iron 1 (Fig. 1) serving to support the entire mechanism of the distributing apparatus as well as the feeding chutes for the facing-material.

This framework rests upon and is secured to a base 2 CIISPOSBdflbQVB the .press table carrying the molds. In this base is 'provided an opening to allow the spouts to. descend into the molds 22 ofthe press. 7 Upon this framework are secured by means of bearings the entraining drums 4 and 5 for the endless aprons 12 and 12 forming the movable bottom of the troughs 6 and 7. The brackets 8 and 9 are also se-- cured thereto. To these brackets are secured the stretchers 10 and 10 whose bearings are mounted upon slides and are driven back by the springs 11 and 11 in such manner as to stretch the endless belts 12' and 12?. The partition 23 prevents the material which becomes detached from the aprons when returning empty from falling into the trough placed below.

The return pulley 14 is also secured to this framework.

The gear wheels 15 and 16jare keyed to the shafts of the drums 4c and 5 (Fig. 1).

The gear wheel 17 (Fig. 5) is actuated by tap trac)tive efl'ort exerted upon the chain 18 ig. 1 f This gear 17 is of the free wheel type, that is, the rotary motion of the teeth is transmitted to the shaft to which the wheel is keyed only in one direction. The gee-r19 (Fig. 1) is loose upon its shaft and is only used here to provide for keyed to the shaft of the drum of the .system of distribution of the high grade mate-. rial for a largesize, while the other gear wheel of the same size as the first is keyed to the drum of the system of distribution for the smaller'side; the endless belt is held in the same manner as theother endless belts.

It is thus evident that the entire system of distribution will operate and stop at the same time.

The synchronism of the movements of the press, the spouts and the belts obtained by a suitable adjustment which will vary with each type of press.

It is of course understood that this invention is not limited to the constructional dispositions above described which are given solely by way of example and which may comprise all modifications which do not depart from the principle of the invention.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A feeding apparatus for brick or building block presses, comprising in combination upper troughs containing the concrete used to form the main body or core of the brick or block, lower troughs con taining the concrete used toform a facing upon one or more sides of the brick or block, endless aprons constituting the movable bottom of the distributing troughs, each trough being provided with adjustable shutters, spouts vertically moved extending through an opening into the mold of the press, a series of feeding chutes leading the first of said qualities of concrete into said spouts and another series of feeding chutes leading the second of said qualities'of concrete around said spouts.

2. A feeding apparatus for brick or building block presses, comprising in combination upper troughs containing the concrete used to form the main body or core of the brick or block, lower troughs containing the concrete used to form a facing upon one or more sides of the brick or block, endless aprons constituting the movable bottom of the distributing troughs, each trough being provided with adjustable shutters, rotatable drums supporting said aprons, spouts vertically moved extending through an opening into the molds of the press, a series of feeding chutes leading the first of said qualities of concrete into said spouts and another series of feeding chutes leading the second of said qualities of concrete around said spouts.

3. A feeding apparatus for brick or building block presses, comprising in combination upper troughs containing the concrete used to form the main body or core of the brick or block, lower troughs containing the concrete to form a facing upon one or more impartingto said drums anintermittent ro-j tary movement, spouts vertically moved extending through an opening into the molds of the press, av series of feeding chutes leading the first of said qualities of concrete into said spouts and another series of feeding chutes leading the second of said qualities of concrete around said spouts.

4. A feeding apparatus for brick or building block presses, comprising in combination upper troughs containing the concrete used to form the main body or core of the brick or block, lower troughs containing the concrete used to form a facing upon one or more sides of the brick or block, endless aprons constituting the movable bottom of the distributing troughs, each trough being provided with adjustable shutters, rotatable drums supporting said aprons, means for actuating the press and for imparting to said drums, a rotary movement, chains and pinions connecting said drums together, one of 7 said pinions being of the free wheel type, a chain actuating this pinion and receiving its movement from said wheel, spouts vertically moved extending through an opening into the molds of the press, a series of feeding chutes leading the first of said qualities of concrete into said spouts and another series of feeding chutes leading the second of said qualities of concrete around said spouts.

5. A feeding apparatus for brick or building block presses, comprising in combination upper troughs containing the concrete used to form the main body 'or core of the brick or block, lower troughs containing the concrete used to form a facing upon one or more sides of the brick or block, endless aprons constituting the movable bottom of the distributing troughs, each trough being provided with adjustable shutters, spouts vertically moved extending through an opening into the molds of the press, aseries of feeding chutes leading the first of said qualities of concrete into said spouts and another series of feeding chutes leading the second of said qualities of concrete around said spouts, means for actuating the press and said drums, and means for lifting by intermittence said spouts.

6. A feeding apparatus for brick or building block presses, comprising in combination upper troughs containing the concrete provided vvith adjutable s huttefsfspon-t s' vertically moved extending through an opening into the molds of the pre'ss, a series-0f feeding chutes leading; the first of 'said qualities ofooncrete into said spouts and another series of feeding chutes leading the'seeond of said qualities of concrete around said spouts, means for actuatingthe press and said drums j and comprising rotatable memhere, a 0am on one of said members, a mod 10 a etuatedbysaid'cam andlifting said spouts by intermittenee said spouts falling by'thei'r V own weight 130 the bottom iii the molds of the V In testimony whereof I have isi'gn'e'd my 15 name to this-specification.

EDMOND :LEGHA'L 

